/**
 * @requires Xquared.js
 * @requires Browser.js
 * @requires Editor.js
 * @requires plugin/Base.js
 * @requires ui/Control.js
 */
xq.plugin.ExtendColorPickerPlugin = xq.Class(xq.plugin.Base,
	/**
	 * @name xq.plugin.ExtendColorPickerPlugin
	 * @lends xq.plugin.ExtendColorPickerPlugin.prototype
	 * @extends xq.plugin.Base
	 * @constructor
	 */
	{
	
	onAfterLoad: function(xed) {
		
		if(!xed.colorPicker)
		{
			xed.colorPicker = {};
		}
		
		xed.colorPicker.range = null;
		
		xed.colorPicker.updateRange = function(e)
		{
			if(!xq.Browser.isTrident){
				return;
			}
			
			var rng = xed.rdom.rng();
			
			if(rng.text !== "" && rng !== xed.colorPicker.range)
			{
				xed.colorPicker.range = rng;
			}
		}
		
		xed.colorPicker.applyToForeground = function(e)
		{
			if(xq.Browser.isTrident && xed.colorPicker.range)
			{
				xed.colorPicker.range.select();
			}
			
			var color =	xq.$('extForeColorValue').value;
			xed.handleForegroundColor("#" + color);
			xq.cancelHandler(e);
			xq.$('foregroundColorDialog').style.display = "none";	
			
		}		

		xed.showColorPicker = function(e)
		{
			var layer = xq.$('extForeColorLayer');
			
			if(layer.style.display !== "")
			{
				xq.cancelHandler(e);
				return;
			}
			
			layer.style.display = "block";
			
			var forePicker = new jscolor.color(xq.$('extForeColor'), 
			{valueElement:'extForeColorValue', required:false, insertNodeAt:layer});
			forePicker.fromString("39BD4F");
			forePicker.showPicker();
			
			xq.cancelHandler(e);
		}

		jscolor.init();

		xed.addListener({
			onEditorInitialized: function(xed)
			{
				var div = document.createElement('div');
				var innerHTML = '<div>\n		<div class="more"><a href="#" id="extForeColorShowPicker">더보기</a></div>\n		<div id="extForeColorLayer">\n			<div class="input-section">\n				<span class="color-preview" id="extForeColor" >&nbsp;</span>\n				<input id="extForeColorValue" type="text" class="type-text color" />\n				<div class="dialog-buttons"><a id="ForeColorSubmit" class="common-button button-white submit" href="#">입력</a></div>\n			</div>\n		</div>\n	</div>';
				div.innerHTML = innerHTML;
				var target = xed.rdom.getLastChild( xq.$('foregroundColorDialog') );
				target.appendChild(div);

				xq.observe(xq.$('extForeColorShowPicker'), 'mousedown', xed.showColorPicker);
				xq.observe(xq.$('ForeColorSubmit'), 'mousedown', xed.colorPicker.applyToForeground);
				xq.observe(xq.$('foregroundColorDialog'), 'mousedown', xed.colorPicker.updateRange);
			}
		});
	}
});

var jscolor = {
	dir : 'images/plugin/colorpicker/', // location of jscolor directory (leave empty to autodetect);
	bindClass : 'color', // class name;
	binding : true, // automatic binding via <input class="...">;
	preloading : true, // use image preloading?;

	init : function() {
		if(jscolor.binding) {
			jscolor.bind();
		}
		if(jscolor.preloading) {
			jscolor.preload();
		}
	},

	getDir : function() {
		return jscolor.dir;
	},

	bind : function() {
		var matchClass = new RegExp('(^|\\s)('+jscolor.bindClass+')\\s*(\\{[^}]*\\})?', 'i');
		var e = document.getElementsByTagName('input');
		for(var i=0; i<e.length; i++) {
			var m;
			if(!e[i].color && e[i].className && (m = e[i].className.match(matchClass))) {
				var prop = {}
				if(m[3]) {
					try {
						eval('prop='+m[3]);
					} catch(eInvalidProp) {}
				}
				e[i].color = new jscolor.color(e[i], prop);
			}
		}
	},


	preload : function() {
		for(var fn in jscolor.imgRequire) {
			jscolor.loadImage(fn);
		}
	},


	images : {
		pad : [ 150, 84 ],
		sld : [ 16, 84 ],
		cross : [ 15, 15 ],
		arrow : [ 7, 11 ]
	},


	imgRequire : {},
	imgLoaded : {},


	requireImage : function(filename) {
		jscolor.imgRequire[filename] = true;
	},


	loadImage : function(filename) {
		if(!jscolor.imgLoaded[filename]) {
			jscolor.imgLoaded[filename] = new Image();
			jscolor.imgLoaded[filename].src = jscolor.getDir()+filename;
		}
	},


	fetchElement : function(mixed) {
		return typeof(mixed) == 'string' ? document.getElementById(mixed) : mixed;
	},


	addEvent : function(el, evnt, func) {
		if(el.addEventListener) {
			return el.addEventListener(evnt, func, false);
		} else if(el.attachEvent) {
			return el.attachEvent('on'+evnt, func);
		} else {
			return false;
		}
	},


	fireEvent : function(el, evnt) {
		if(!el) {
			return false;
		} else if(document.createEventObject) {
			var ev = document.createEventObject();
			return el.fireEvent('on'+evnt, ev);
		} else if(document.createEvent) {
			var ev = document.createEvent('HTMLEvents');
			ev.initEvent(evnt, true, true);
			return el.dispatchEvent(ev);
		} else if(el['on'+evnt]) { // alternatively use the traditional event model (IE5);
			return el['on'+evnt]();
		} else {
			return false;
		}
	},

	getElementPos : function(e) {
		var e1=e, e2=e;
		var x=0, y=0;
		if(e1.offsetParent) {
			do {
				x += e1.offsetLeft;
				y += e1.offsetTop;
			} while(e1 = e1.offsetParent);
		}
		while((e2 = e2.parentNode) && e2.nodeName != 'BODY') {
			x -= e2.scrollLeft;
			y -= e2.scrollTop;
		}
		return [x, y];
	},

	getElementSize : function(e) {
		return [e.offsetWidth, e.offsetHeight];
	},

	getMousePos : function(e) {
		if(!e) e = window.event;
		if(typeof e.pageX == 'number') {
			return [e.pageX, e.pageY];
		} else if(typeof e.clientX == 'number') {
			return [
				e.clientX + document.body.scrollLeft + document.documentElement.scrollLeft,
				e.clientY + document.body.scrollTop + document.documentElement.scrollTop
			];
		}
	},

	getViewPos : function() {
		if(typeof window.pageYOffset == 'number') {
			return [window.pageXOffset, window.pageYOffset];
		} else if(document.body && (document.body.scrollLeft || document.body.scrollTop)) {
			return [document.body.scrollLeft, document.body.scrollTop];
		} else if(document.documentElement && (document.documentElement.scrollLeft || document.documentElement.scrollTop)) {
			return [document.documentElement.scrollLeft, document.documentElement.scrollTop];
		} else {
			return [0, 0];
		}
	},


	getViewSize : function() {
		if(typeof window.innerWidth == 'number') {
			return [window.innerWidth, window.innerHeight];
		} else if(document.body && (document.body.clientWidth || document.body.clientHeight)) {
			return [document.body.clientWidth, document.body.clientHeight];
		} else if(document.documentElement && (document.documentElement.clientWidth || document.documentElement.clientHeight)) {
			return [document.documentElement.clientWidth, document.documentElement.clientHeight];
		} else {
			return [0, 0];
		}
	},


	URI : function(uri) { // See RFC3986;

		this.scheme = null;
		this.authority = null;
		this.path = '';
		this.query = null;
		this.fragment = null;

		this.parse = function(uri) {
			var m = uri.match(/^(([A-Za-z][0-9A-Za-z+.-]*)(:))?((\/\/)([^\/?#]*))?([^?#]*)((\?)([^#]*))?((#)(.*))?/);
			this.scheme = m[3] ? m[2] : null;
			this.authority = m[5] ? m[6] : null;
			this.path = m[7];
			this.query = m[9] ? m[10] : null;
			this.fragment = m[12] ? m[13] : null;
			return this;
		}

		this.toString = function() {
			var result = '';
			if(this.scheme != null) result = result + this.scheme + ':';
			if(this.authority != null) result = result + '//' + this.authority;
			if(this.path != null) result = result + this.path;
			if(this.query != null) result = result + '?' + this.query;
			if(this.fragment != null) result = result + '#' + this.fragment;
			return result;
		}

		this.toAbsolute = function(base) {
			var base = new jscolor.URI(base);
			var r = this;
			var t = new jscolor.URI;

			if(base.scheme == null) return false;

			if(r.scheme != null && r.scheme.toLowerCase() == base.scheme.toLowerCase()) {
				r.scheme = null;
			}

			if(r.scheme != null) {
				t.scheme = r.scheme;
				t.authority = r.authority;
				t.path = removeDotSegments(r.path);
				t.query = r.query;
			} else {
				if(r.authority != null) {
					t.authority = r.authority;
					t.path = removeDotSegments(r.path);
					t.query = r.query;
				} else {
					if(r.path == '') {
						t.path = base.path;
						if(r.query != null) {
							t.query = r.query;
						} else {
							t.query = base.query;
						}
					} else {
						if(r.path.substr(0,1) == '/') {
							t.path = removeDotSegments(r.path);
						} else {
							if(base.authority != null && base.path == '') {
								t.path = '/'+r.path;
							} else {
								t.path = base.path.replace(/[^\/]+$/,'')+r.path;
							}
							t.path = removeDotSegments(t.path);
						}
						t.query = r.query;
					}
					t.authority = base.authority;
				}
				t.scheme = base.scheme;
			}
			t.fragment = r.fragment;

			return t;
		}

		function removeDotSegments(path) {
			var out = '';
			while(path) {
				if(path.substr(0,3)=='../' || path.substr(0,2)=='./') {
					path = path.replace(/^\.+/,'').substr(1);
				} else if(path.substr(0,3)=='/./' || path=='/.') {
					path = '/'+path.substr(3);
				} else if(path.substr(0,4)=='/../' || path=='/..') {
					path = '/'+path.substr(4);
					out = out.replace(/\/?[^\/]*$/, '');
				} else if(path=='.' || path=='..') {
					path = '';
				} else {
					var rm = path.match(/^\/?[^\/]*/)[0];
					path = path.substr(rm.length);
					out = out + rm;
				}
			}
			return out;
		}

		if(uri) {
			this.parse(uri);
		}

	},

	/*;
	 * Usage example:
	 * var myColor = new jscolor.color(myInputElement);
	 */

	color : function(target, prop) {
		this.required = true; // refuse empty values?
		this.adjust = true; // adjust value to uniform notation?
		this.hash = false; // prefix color with # symbol?
		this.caps = true; // uppercase?
		this.valueElement = target; // value holder;
		this.styleElement = target; // where to reflect current color;
		this.hsv = [0, 0, 1]; // read-only  0-6, 0-1, 0-1
		this.rgb = [1, 1, 1]; // read-only  0-1, 0-1, 0-1

		this.pickerOnfocus = true; // display picker on focus?
		this.pickerMode = 'HSV'; // HSV | HVS
		this.pickerPosition = 'bottom'; // left | right | top | bottom
		this.pickerFace = 1; // px;
		this.pickerFaceColor = 'transparent'; // CSS color;
		this.pickerBorder = 0; // px;
		this.pickerBorderColor = 'ThreeDHighlight ThreeDShadow ThreeDShadow ThreeDHighlight'; // CSS color;
//		this.pickerBorderColor = '#000000'; // CSS color;
		this.pickerInset = 1; // px;
		this.pickerInsetColor = '#000000'; // CSS color;
		this.pickerZIndex = 10000;
		
		this.styleMarginX = 1;
		this.styleMarginY = 10;
		

		for(var p in prop)
		{
			this[p] = prop[p];
		}

		this.hidePicker = function() {
			if(isPickerOwner()) {
				removePicker();
			}
		}

		this.showPicker = function() {
			if(!isPickerOwner()) {
				var tp = jscolor.getElementPos(target) // target pos;
				var ts = jscolor.getElementSize(target) // target size;
				var vp = jscolor.getViewPos() // view pos;
				var vs = jscolor.getViewSize() // view size;
				var ps = [ // picker size;
					2*this.pickerBorder + 4*this.pickerInset + 2*this.pickerFace + jscolor.images.pad[0] + 2*jscolor.images.arrow[1] + jscolor.images.sld[0],
					2*this.pickerBorder + 2*this.pickerInset + 2*this.pickerFace + jscolor.images.pad[1]
				];
				var a, b, c;
				switch(this.pickerPosition.toLowerCase()) {
					case 'left': a=1; b=0; c=-1; break;
					case 'right':a=1; b=0; c=1; break;
					case 'top':  a=0; b=1; c=-1; break;
					default:     a=0; b=1; c=1; break;
				}
				var l = (ts[b]+ps[b])/2;
				var pp = [ // picker pos;
					-vp[a]+tp[a]+ps[a] > vs[a] ?
						(-vp[a]+tp[a]+ts[a]/2 > vs[a]/2 && tp[a]+ts[a]-ps[a] >= 0 ? tp[a]+ts[a]-ps[a] : tp[a]) : tp[a],
					-vp[b]+tp[b]+ts[b]+ps[b]-l+l*c > vs[b] ?
						(-vp[b]+tp[b]+ts[b]/2 > vs[b]/2 && tp[b]+ts[b]-l-l*c >= 0 ? tp[b]+ts[b]-l-l*c : tp[b]+ts[b]-l+l*c) :
						(tp[b]+ts[b]-l+l*c >= 0 ? tp[b]+ts[b]-l+l*c : tp[b]+ts[b]-l-l*c)
				];
				
				drawPicker(pp[a], pp[b]);
			}
			
			return false;
			
		}

		this.importColor = function() {
			
			if(!valueElement) {
				this.exportColor();
			} else {
				if(!this.adjust) {
					if(!this.fromString(valueElement.value, leaveValue)) {
						styleElement.style.backgroundColor = styleElement.jscStyle.backgroundColor;
						styleElement.style.color = styleElement.jscStyle.color;
						this.exportColor(leaveValue | leaveStyle);
					}
				} else if(!this.required && /^\s*$/.test(valueElement.value)) {
					valueElement.value = '';
					styleElement.style.backgroundColor = styleElement.jscStyle.backgroundColor;
					styleElement.style.color = styleElement.jscStyle.color;
					this.exportColor(leaveValue | leaveStyle);

				} else if(this.fromString(valueElement.value)) {
					// OK;
				} else {
					this.exportColor();
				}
			}
		}

		this.exportColor = function(flags) {
			if(!(flags & leaveValue) && valueElement) {
				var value = this.toString();
				if(this.caps) value = value.toUpperCase();
				if(this.hash) value = '#'+value;
				valueElement.value = value;
			}
			if(!(flags & leaveStyle) && styleElement) {
				styleElement.style.backgroundColor = '#'+this.toString();
				styleElement.style.color =
					0.213 * this.rgb[0] +
					0.715 * this.rgb[1] +
					0.072 * this.rgb[2]
					< 0.5 ? '#FFF' : '#000';
			}
			if(!(flags & leavePad) && isPickerOwner()) {
				redrawPad();
			}
			if(!(flags & leaveSld) && isPickerOwner()) {
				redrawSld();
			}
		}

		this.fromHSV = function(h, s, v, flags) { // null = don't change;
			h<0 && (h=0) || h>6 && (h=6);
			s<0 && (s=0) || s>1 && (s=1);
			v<0 && (v=0) || v>1 && (v=1);
			this.rgb = HSV_RGB(
				h==null ? this.hsv[0] : (this.hsv[0]=h),
				s==null ? this.hsv[1] : (this.hsv[1]=s),
				v==null ? this.hsv[2] : (this.hsv[2]=v)
			);
			this.exportColor(flags);
		}


		this.fromRGB = function(r, g, b, flags) { // null = don't change;
			r<0 && (r=0) || r>1 && (r=1);
			g<0 && (g=0) || g>1 && (g=1);
			b<0 && (b=0) || b>1 && (b=1);
			var hsv = RGB_HSV(
				r==null ? this.rgb[0] : (this.rgb[0]=r),
				g==null ? this.rgb[1] : (this.rgb[1]=g),
				b==null ? this.rgb[2] : (this.rgb[2]=b)
			);
			if(hsv[0] != null) {
				this.hsv[0] = hsv[0];
			}
			if(hsv[2] != 0) {
				this.hsv[1] = hsv[1];
			}
			this.hsv[2] = hsv[2];
			this.exportColor(flags);
		}


		this.fromString = function(hex, flags) {
			var m = hex.match(/^\W*([0-9A-F]{3}([0-9A-F]{3})?)\W*$/i);
			if(!m) {
				return false;
			} else {
				if(m[1].length == 6) { // 6-char notation;
					this.fromRGB(
						parseInt(m[1].substr(0,2),16) / 255,
						parseInt(m[1].substr(2,2),16) / 255,
						parseInt(m[1].substr(4,2),16) / 255,
						flags
					);
				} else { // 3-char notation;
					this.fromRGB(
						parseInt(m[1].charAt(0)+m[1].charAt(0),16) / 255,
						parseInt(m[1].charAt(1)+m[1].charAt(1),16) / 255,
						parseInt(m[1].charAt(2)+m[1].charAt(2),16) / 255,
						flags
					);
				}
				return true;
			}
		}


		this.toString = function() {
			return (
				(0x100 | Math.round(255*this.rgb[0])).toString(16).substr(1) +
				(0x100 | Math.round(255*this.rgb[1])).toString(16).substr(1) +
				(0x100 | Math.round(255*this.rgb[2])).toString(16).substr(1)
			);
		}


		function RGB_HSV(r, g, b) {
			var n = Math.min(Math.min(r,g),b);
			var v = Math.max(Math.max(r,g),b);
			var m = v - n;
			if(m == 0) return [ null, 0, v ];
			var h = r==n ? 3+(b-g)/m : (g==n ? 5+(r-b)/m : 1+(g-r)/m);
			return [ h==6?0:h, m/v, v ];
		}


		function HSV_RGB(h, s, v) {
			if(h == null) return [ v, v, v ];
			var i = Math.floor(h);
			var f = i%2 ? h-i : 1-(h-i);
			var m = v * (1 - s);
			var n = v * (1 - s*f);
			switch(i) {
				case 6:;
				case 0: return [v,n,m];
				case 1: return [n,v,m];
				case 2: return [m,v,n];
				case 3: return [m,n,v];
				case 4: return [n,m,v];
				case 5: return [v,m,n];
			}
		}


		function removePicker() {
			delete jscolor.picker.owner;
			
			if(!THIS.insertNodeAt)
			{
				document.getElementsByTagName('body')[0].removeChild(jscolor.picker.boxB);
			}
//			else
//			{
//				THIS.insertNodeAt.removeChild(jscolor.picker.boxB);
//			}
		}
	
		this.updateBookmark = function()
		{
			if(xq.Browser.isTrident) {
				var rng = xed.rdom.rng();
				var bm = rng.getBookmark();
				rng.moveToBookmark(bm);
				rng.select();
			}
		}
		
		function drawPicker(x, y) {
			
			if(!jscolor.picker) {
				jscolor.picker = {
					box : document.createElement('div'),
					boxB : document.createElement('div'),
					pad : document.createElement('div'),
					padB : document.createElement('div'),
					padM : document.createElement('div'),
					sld : document.createElement('div'),
					sldB : document.createElement('div'),
					sldM : document.createElement('div')
				}
				for(var i=0,segSize=4; i<jscolor.images.sld[1]; i+=segSize) {
					var seg = document.createElement('div');
					seg.style.height = segSize+'px';
					seg.style.fontSize = '1px';
					seg.style.lineHeight = '0';
					
					jscolor.picker.sld.appendChild(seg);
				}
				jscolor.picker.sldB.appendChild(jscolor.picker.sld);
				jscolor.picker.box.appendChild(jscolor.picker.sldB);
				jscolor.picker.box.appendChild(jscolor.picker.sldM);
				jscolor.picker.padB.appendChild(jscolor.picker.pad);
				jscolor.picker.box.appendChild(jscolor.picker.padB);
				jscolor.picker.box.appendChild(jscolor.picker.padM);
				jscolor.picker.boxB.appendChild(jscolor.picker.box);
			}

			var p = jscolor.picker;
			
			// recompute controls positions;
			posPad = [
				x+THIS.pickerBorder+THIS.pickerFace+THIS.pickerInset+THIS.styleMarginX ,
				y+THIS.pickerBorder+THIS.pickerFace+THIS.pickerInset+THIS.styleMarginY ]
			posSld = [
				null,
				y+THIS.pickerBorder+THIS.pickerFace+THIS.pickerInset+THIS.styleMarginY ];

			// controls interaction;
			p.box.onmouseup = p.box.onmouseout = function(e) {};
			p.box.onmousedown = function(e) {  abortBlur=true;};
			p.box.onmousemove = function(e) {  holdPad && setPad(e); holdSld && setSld(e);};
			p.padM.onmouseup =	p.padM.onmouseout = function(e) { if(holdPad) { holdPad=false; jscolor.fireEvent(valueElement,'change') }};
			p.padM.onmousedown = function(e) {holdPad=true; setPad(e); };
			
			p.sldM.onmouseup =	p.sldM.onmouseout = function(e) { if(holdSld) { holdSld=false; jscolor.fireEvent(valueElement,'change') } };
			p.sldM.onmousedown = function(e) { holdSld=true; setSld(e) };

			// picker;
			p.box.style.width = 4*THIS.pickerInset + 2*THIS.pickerFace + jscolor.images.pad[0] + 2*jscolor.images.arrow[0] + jscolor.images.sld[0] + 'px';
			p.box.style.height = 2*THIS.pickerInset + 2*THIS.pickerFace + jscolor.images.pad[1] + 'px';

			// picker border;
			p.boxB.style.position = 'relative';
			p.boxB.style.clear = 'both';
			p.boxB.style.left = x+'px';
			p.boxB.style.top = y+'px';
			p.boxB.style.left = 0;
			p.boxB.style.top = 0;
			p.boxB.style.zIndex = THIS.pickerZIndex;
			p.boxB.style.border = THIS.pickerBorder+'px solid';
			p.boxB.style.borderColor = THIS.pickerBorderColor;
			p.boxB.style.background = THIS.pickerFaceColor;
			p.boxB.className = "jscolor";

			// pad image;
			p.pad.style.width = jscolor.images.pad[0]+'px';
			p.pad.style.height = jscolor.images.pad[1]+'px';

			// pad border;
			p.padB.style.position = 'absolute';
			p.padB.style.left = THIS.pickerFace+'px';
			p.padB.style.top = THIS.pickerFace+'px';
			p.padB.style.border = THIS.pickerInset+'px solid';
			p.padB.style.borderColor = THIS.pickerInsetColor;
			p.padB.className = "jscolor";

			// pad mouse area;
			p.padM.style.position = 'absolute';
			p.padM.style.left = '0';
			p.padM.style.top = '0';
			p.padM.style.width = THIS.pickerFace + 2*THIS.pickerInset + jscolor.images.pad[0] + jscolor.images.arrow[0] + 'px';
			p.padM.style.height = p.box.style.height;
			p.padM.style.cursor = 'crosshair';
			p.padM.className = "jscolor";

			// slider image;
			p.sld.style.overflow = 'hidden';
			p.sld.style.width = jscolor.images.sld[0]+'px';
			p.sld.style.height = jscolor.images.sld[1]+'px';

			// slider border;
			p.sldB.style.position = 'absolute';
			p.sldB.style.right = THIS.pickerFace+'px';
			p.sldB.style.top = THIS.pickerFace+'px';
			p.sldB.style.border = THIS.pickerInset+'px solid';
			p.sldB.style.borderColor = THIS.pickerInsetColor;

			// slider mouse area;
			p.sldM.style.position = 'absolute';
			p.sldM.style.right = '0';
			p.sldM.style.top = '0';
			p.sldM.style.width = jscolor.images.sld[0] + jscolor.images.arrow[0] + THIS.pickerFace + 2*THIS.pickerInset + 'px';
			p.sldM.style.height = p.box.style.height;
			p.sldM.className = "jscolor";
			
			
			
			try {
				p.sldM.style.cursor = 'pointer';
			} catch(eOldIE) {
				p.sldM.style.cursor = 'hand';
			}

			// load images in optimal order;
			switch(modeID) {
				case 0: var padImg = 'hs.png'; break;
				case 1: var padImg = 'hv.png'; break;
			}
			p.padM.style.background = "url('"+jscolor.getDir()+"cross.gif') no-repeat";
			p.sldM.style.background = "url('"+jscolor.getDir()+"arrow.gif') no-repeat";
			p.pad.style.background = "url('"+jscolor.getDir()+padImg+"') 0 0 no-repeat";

			jscolor.picker.owner = THIS;

			// place pointers;
			redrawPad();
			redrawSld();
						
			if(!THIS.insertNodeAt)
			{
			document.getElementsByTagName('body')[0].appendChild(p.boxB);
			}
			else
			{
				THIS.insertNodeAt.appendChild(p.boxB);
			}
		}

		function redrawPad() {
			// redraw the pad pointer;
			switch(modeID) {
				case 0: var yComponent = 1; break;
				case 1: var yComponent = 2; break;
			}

			var x = Math.round((THIS.hsv[0]/6) * (jscolor.images.pad[0]-1));
			var y = Math.round((1-THIS.hsv[yComponent]) * (jscolor.images.pad[1]-1));
			jscolor.picker.padM.style.backgroundPosition =
				(THIS.pickerFace+THIS.pickerInset+x - Math.floor(jscolor.images.cross[0]/2)) + 'px ' +
				(THIS.pickerFace+THIS.pickerInset+y - Math.floor(jscolor.images.cross[1]/2)) + 'px';
			
			// redraw the slider image;
			var seg = jscolor.picker.sld.childNodes;
			
			switch(modeID) {
				case 0:;
					var rgb = HSV_RGB(THIS.hsv[0], THIS.hsv[1], 1);
					for(var i=0; i<seg.length; i++) {
						seg[i].style.backgroundColor = 'rgb('+
							(rgb[0]*(1-i/seg.length)*100)+'%,'+
							(rgb[1]*(1-i/seg.length)*100)+'%,'+
							(rgb[2]*(1-i/seg.length)*100)+'%)';
					}
					break;
				case 1:;
					var rgb, s, c = [ THIS.hsv[2], 0, 0 ];
					var i = Math.floor(THIS.hsv[0]);
					var f = i%2 ? THIS.hsv[0]-i : 1-(THIS.hsv[0]-i);
					switch(i) {
						case 6:;
						case 0: rgb=[0,1,2]; break;
						case 1: rgb=[1,0,2]; break;
						case 2: rgb=[2,0,1]; break;
						case 3: rgb=[2,1,0]; break;
						case 4: rgb=[1,2,0]; break;
						case 5: rgb=[0,2,1]; break;
					}
					for(var i=0; i<seg.length; i++) {
						s = 1 - 1/(seg.length-1)*i;
						c[1] = c[0] * (1 - s*f);
						c[2] = c[0] * (1 - s);
						seg[i].style.backgroundColor = 'rgb('+
							(c[rgb[0]]*100)+'%,'+
							(c[rgb[1]]*100)+'%,'+
							(c[rgb[2]]*100)+'%)';
					}
					break;
			}
		}

		function redrawSld() {
			// redraw the slider pointer;
			switch(modeID) {
				case 0: var yComponent = 2; break;
				case 1: var yComponent = 1; break;
			}
			var y = Math.round((1-THIS.hsv[yComponent]) * (jscolor.images.sld[1]-1));
			jscolor.picker.sldM.style.backgroundPosition =
				'0 ' + (THIS.pickerFace+THIS.pickerInset+y - Math.floor(jscolor.images.arrow[1]/2)) + 'px';
		}


		function isPickerOwner() {
			return jscolor.picker && jscolor.picker.owner == THIS;
		}


		function blurTarget() {
			if(valueElement == target) THIS.importColor();
			if(THIS.pickerOnfocus) THIS.hidePicker();
		}

		function blurValue() {
			if(valueElement != target) THIS.importColor();
		}


		function setPad(e) {
			var posM = jscolor.getMousePos(e);
			var x = posM[0]-posPad[0];
			var y = posM[1]-posPad[1];
			
			switch(modeID) {
				case 0: THIS.fromHSV(x*(6/(jscolor.images.pad[0]-1)), 1 - y/(jscolor.images.pad[1]-1), null, leaveSld); break;
				case 1: THIS.fromHSV(x*(6/(jscolor.images.pad[0]-1)), null, 1 - y/(jscolor.images.pad[1]-1), leaveSld); break;
			}
		}


		function setSld(e) {
			var posM = jscolor.getMousePos(e);
			var y = posM[1]-posPad[1];
			switch(modeID) {
				case 0: THIS.fromHSV(null, null, 1 - y/(jscolor.images.sld[1]-1), leavePad); break;
				case 1: THIS.fromHSV(null, 1 - y/(jscolor.images.sld[1]-1), null, leavePad); break;
			}
		}


		var THIS = this;
		var modeID = this.pickerMode.toLowerCase()=='hvs' ? 1 : 0;
		var abortBlur = false;
		var	valueElement = jscolor.fetchElement(this.valueElement),
			styleElement = jscolor.fetchElement(this.styleElement);
		var	holdPad = false,holdSld = false;
		var 	posPad,	posSld;
		var	leaveValue = 1<<0,
			leaveStyle = 1<<1,
			leavePad = 1<<2,
			leaveSld = 1<<3;

		// target;
		
		if(target)
		{
			jscolor.addEvent(target, 'focus', function() {
				if(THIS.pickerOnfocus) THIS.showPicker();
			});
			
			jscolor.addEvent(target, 'blur', function() {
				if(!abortBlur) {
					setTimeout(function(){ abortBlur || blurTarget(); abortBlur=false }, 0);
				} else {
					abortBlur = false;
				}
			});
		}

		// valueElement;
		if(valueElement) {
			var updateField = function() {
				THIS.fromString(valueElement.value, leaveValue);
			}
			jscolor.addEvent(valueElement, 'keyup', updateField);
			jscolor.addEvent(valueElement, 'input', updateField);
			jscolor.addEvent(valueElement, 'blur', blurValue);
			valueElement.setAttribute('autocomplete', 'off');
		}

		// styleElement;
		if(styleElement) {
			styleElement.jscStyle = {
				backgroundColor : styleElement.style.backgroundColor,
				color : styleElement.style.color
			}
		}

		// require images;
		switch(modeID) {
			case 0: jscolor.requireImage('hs.png'); break;
			case 1: jscolor.requireImage('hv.png'); break;
		}
		jscolor.requireImage('cross.gif');
		jscolor.requireImage('arrow.gif');

		this.importColor();
	}

};